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Electronic Principles

Electronic Principles
How many protons does the nucleus of a silicon atom contain?

48
29
None of these
14
4

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Electronic Principles
Suppose the voltage from a power outlet is 120 Vrms. What is the peak voltage?

None of these
120 V
100 V
180 V
170 V

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Electronic Principles
A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns?

0.41666666666667
0.1 A
None of these
1000 A
100 A

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Electronic Principles
What is the impedance of a circuit composed of a 100 ohm resistor connected in parallel with a capacitor that has a reactance of 100 ohm?

99.3 Ohm
250 Ohm
None of these
70.7Ohm
60 Ohm

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Electronic Principles
How may valence electrons does a silicon atom have?

None of these
2
4
1

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Electronic Principles
Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff?

5 Ohm
6 Ohm
100 Ohm
50 Ohm or more
None of these

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